22657541 has 2 divisors, whose sum is σ = 22657542. Its totient is φ = 22657540.

The previous prime is 22657529. The next prime is 22657573. The reversal of 22657541 is 14575622.

It is an a-pointer prime, because the next prime (22657573) can be obtained adding 22657541 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14984641 + 7672900 = 3871^2 + 2770^2 .

It is a cyclic number.

It is not a de Polignac number, because 22657541 - 2⁶ = 22657477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22657498 and 22657507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22657501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11328770 + 11328771.

It is an arithmetic number, because the mean of its divisors is an integer number (11328771).

Almost surely, 2^22657541 is an apocalyptic number.

It is an amenable number.

22657541 is a deficient number, since it is larger than the sum of its proper divisors (1).

22657541 is an equidigital number, since it uses as much as digits as its factorization.

22657541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 32.

The square root of 22657541 is about 4759.9938025170. The cubic root of 22657541 is about 282.9681734906.

The spelling of 22657541 in words is "twenty-two million, six hundred fifty-seven thousand, five hundred forty-one".